Pencil sharpener



FIG. 1 is a left-side perspective view of a pencil sharpener embodying the present invention.

FIG. 2 is a left side view of the pencil sharpener.

FIG. 3 is a right side view of the pencil sharpener.

FIG. 4 is a front view of the pencil sharpener.

FIG. 5 is a rear view of the pencil sharpener; and,

FIG. 6 is a top view of the pencil sharpener.

The broken line showing portions of the pencil sharpener are included for the purpose of illustrating environmental matter and form no part of the claimed design. 

We claim the ornamental design for a pencil sharpener, as shown and described. 